Multiple fluid dispenser



July 25, 1950 w. H. BAUMGARD MULTIPLE FLUID DISPENSER Filed Aug. 22, 1947 2 Sheets-Sheet l Z2 L 7 INVENTOR. ILL/AM BAUMGARD .4 TTOR/VE Y y 1950 w. H. B/AUMGARD 2,516,174

MULTIPLE FLUID DISPENSER Filed Aug. 22, 1947. 2 Sheets-Sheet 2 WILLIAM H. .BAUMGARD ATTORNEY Patented July 25, 1950 UNITED STATES PATENT OFFICE MULTIPLE FLUID DISPENSER William H. Baumgard, Carlstadt, N. Application August 22, 1947, Serial No. 770,067

6 Claims. (01. 222--89) This invention relates to new and useful improvements in equipment for dispensing fumigating compounds and relates particularly to the dispensing of methyl bromide simultaneously from a plurality of cans.

Methyl bromide is customarily packed in 1 1b. cans and in steel containers of various sizes. A iumigating job on a railroad car or other place generally requires more than one can. This invention particularly proposes a multiple fluid dispenser into which a plurality of said cans may be placed, as needed, and said cans simultaneously dispensed to the space being fumigated. This system is far superior to the one now generally in use in which each can is individually used, requiring four or five operations, if four or five cans are to be used.

An important feature of the new dispenser resides in so constructing same that one can, two cans, or any number of cans up to the capacity of the dispenser, may be dispensed as required.

The new dispenser is characterized by a frame having a front wall, and a carriage slidably mounted on the frame for moving towards the front wall and having a plurality of openings the edges of which are adapted to support a. plurality of cans in downwardly inclined positions with their front ends directed towards said front wall. It is proposed to provide a plurality of tubular can piercing members mounted on the front wall in positions aligning with the bottoms of the front ends of the cans. A fluid discharging pipe is connected with said tubular piercing members. Each tubular piercing member is provided with a compressible sealing bushing for sealing the connections between the tubular piercing members and the front ends of the cans. It is proposed to provide means for moving the carriage towards said front wall for simultaneously engaging. said cans on said tubular piercing members.

An important feature of this invention resides inproviding means for locking the carriage in its'forward position so that it may not move rearwards accidentally while the contents of the. cans are being dispensed. I

Another object of the invention is to provide means for holding the back; ends of the cans: from moving upwards and thus preventing acci dental displacement of the cans during the dispensing operation. p

The invention also proposes the use of caps ifor engaging on each of the'pierci'ng members so that one or more of these members may be capped when a lesser number of cans is used than the capacity of the multiple fluid dispenser.

It is pointed out that methyl bromide for which the new multiple fluid dispenser is particularly adapted, is very volatile and at normal temperatures is a gas. However, methyl bromide remains a liquid when confined in containers and is under its own vapor pressure when above its boiling point of 401 F. Due to this low boiling point the containers of methyl bromide cannot be safely opened at atmospheric temperaimr es without some type of dispenser for conveyingthe gases to the fumigating compartments. It is customary to construct the tin cans containing the methyl bromide with concave ends to oppose the internal vapor pressure. It is an important object of this invention to support the cans of the methyl bromide in a downwardly inclined direction and to pierce the front low ends as close to the bottom as is practical so that the internal gas pressure empties the entire can during the dispensing operation.

Another important object of this-invention is to so arrange the parts that the bi rcing members' enter the ends of the can at substantially.

right angles to the area being pierced so as to substantially produce circular openings which;

are more easily sealed by the compressible se ing bushings than elongated openings forme when the piercing members'jent r. the ends of the cans at angIesother than'l ri'ght angles.

Another object-of the invention is the construction of adevice as described which is simple and durable and which may be manufactured and sold at a reasonable cost; 7

For further comprehension of the invention, and of the objects and adyaiitages thereof; reference will be had to the renewing: descrfp tion and accompanyingdrawlngs'; and to the appended claims in which the various noyel features of the invention are more particularly set forth,

In the accompanying drawings fbhgm 9;:

material part of disclosuree- Fig. 1 is a plan view of a multiple fluid dis-.7

penser constructed in accordance wltii'this' invert,- tibn.

Fig. 2 is a front elevation of Fig. 1'. Fig. '3" is a transverse enlarged fragmentary sectional view taken on the line 3-4:. of Fi 1. Fig. 4 a; longitudinal sectional viewtalren on. the line- --4* of Fig". 1. Fig.5; is a sectional 5 5 of Fig. 1.

vriet r taken, on the Fig. 6 is an enlarged detailed view of a portion of Fig. 5.

Fig. 7 is a sectional view similar to Fig. 3 but illustrating the parts in a different position.

Fig. 8 is a fragmentary plan view looking in the direction of the line 88 of Fig. 7.

The multiple fluid dispenser, in accordance with this invention, includes a frame It) having a front wall-J I :aback wall |2; and' a plurality of rods l3 rigidly connecting said front and back walls. A carriage 4 is slidably mounted on the frame Ill for moving towards said front wall l1. Said carriage l4 consists of a front bar l5, aback bar l6, and a plurality of rods rigidly connecting said front bar IS with the back bar It. The

carriage I4 is also provided with tubes |8 exan upward inclined position, as illustrated by the full lines on the drawing, the toggles 30, 3| have their arms at acute angles in relation with each other. The handle 38 may be moved downwards to the position, indicated by the dot and dash lines in Fig. 5, for pivoting the bell crank 31 and for moving the connecting rod 39 and thus indirectly moving the bar 36 which moves the links of the toggles 30 and 3| to positions as illustrated in Figs. 7 and 8 in which the carriage l4 will be moved to its forward position.

Means is provided for locking the carriage I4 an arrangement whereby the bell crank 3! is limtended between the front bar 'l iand backbar I6 1 and slidably engaging on certain of the rods" l3 by which the carriage |4 is slidably mounted on the frame it]. Thecarriage l4 alsohas a plate l5 mounted against the rear face of the back bar l6 and supporting a cover plate which extends over the back wall |2. The carriage 14 has a plurality of' openings'the. edges of which are adapted to support a plurality of cans, one of which is schematically indicated by the dot and dash lines 2|, in downwardly inclined positions with theirfront ends directed towardssaidfront wall H l More specifically, said plurality of openin'gs arebounded at the front by the front bar |5, at the back by theback bar l6, and at the sides bythe rods 1. The rods 11 are equally spaced from each other at positions so that one; can is engageable between adjacent rods'll. I

w A plurality of tubular can piercing members 24 are mounted uponand through. the front wall H in positions aligning with; the bottoms of the front ends of cans 2| which are supported in the openings of said carriage. 14. These piercing members 24 have threaded shanks25 which pass throughopenings .formedin the front wall Nuts 26 are threadedly engaged on the threads of said shanks and engage against the front and back faces of the front wall v| by which the piercing members are rigidly held in position. .A compressible sealing bushing :21 is mounted on each of the tubular piercing members :24 for sealing the connection between said tubular. piercing members 24 and the front endsof the cans 2|. A fluid discharge pipe 28 is connected with the front ends of the tubular piercing members 24 by which the fumigating substance may be, connected with suitable. hosing. to discharge same into. the-space to be fumigated.

Means is associatedwith the carriage 14 for moving it towards the front wall-l forsimultaneouslyengagingall cans 2|. which are mounted on the carriage l4: onto said tubular piercing members 24. This mean s;includes a series of toggle links ,30, 3|. Each pair bfLlinks 3ll and 3| .are pivotally connected with each other; at their. inner ends by pintles 32, and at their outer endsare pivotally connected by pintles .33 with blocks ;34

and the rearwall 12. I I I bar 36 extends alongthe centers: of the toggles 30, 3| and is connected with all of the toggles by said pintles 32; which. pass upwards through thebar 36. 'Abell. crank 31 is pivotally mounted uponone of therods l3. A handle 38 connects withfone end of the bell crank 31 by which the bell crank may be pivoted. j ill-connecting rod 39 pivotally connects with the bell crank 31- and with the center of one of the toggles 30; 3|; The arrangement is such that when the handle 38 is in mounted on the"adjacent;:faces of. said carriage ited in its pivoting so as to strike one of the rods l3, as indicated by the dot and dash lines in Fig. 5. In this position the toggles 30, 3| have been moved past their dead centers, as clearly illustrated in Fig. 8, in which the carriage M is locked against moving back to its starting position. It is necessary that the toggles 30, 3| be moved back pasttheir dead centers to move the carriage l4 back to its starting position.

Means is provided for holding the back ends of the cans 2| from moving upwards so as to prevent the cans from accidentally kicking off while the dispenser is being used. This means comprises a plurality of studs 4|, one for each can 2|, mounted upon the strip. above the back bar It and adapted to engage over the bottom back edges of the cans 2| as illustrated in Fig. 3. The cans 2| have concave ends 42 so as to be stronger and better hold the internal vapor pressure of the contents of the cans. These curved bottom ends 42 form edge flanges which are capable of engaging beneath the studs 4| when the cans 2| are placed in inclined positions as illustrated inFig. 3.

Each tubular can piercing member 24- is provided with a cap 43 adapted to be engaged over the compressible sea-ling bushing 21 and to threadedly engage the threads of said shanks 25. In Fig. 1 one cap 43 is illustrated in position. By the. use of these caps 43 it is possible to block off one or more of the tubular piercing members 24 so that when a lesser number of cans is used on the dispenser the fluid and gases will not escape into the atmosphere. Moreover, the caps 43 are of such a size as to prevent the engagement of the cans 2| in inclined positions on the carriage 4. This may be seen from Fig. 3. In order to place the can 2| into its inclined position the front end must move downwards past the front bar I4 and the back end of the can must be engaged beneath the stud 4|. However, the cap 43 prevents the can from taking this position as a safetymeasure to prevent the can from being broken open when the carriage I4 is moved forwards. 1 V

The operation and use of the multiple fluid dispenser may be understood from the following:

Initially, the dispenser is in the position as illustrated in Figs. 1-6 inclusive. In this position one or more of the cans 2| of fumigating material may be placed in inclined positions-between the rods l1 and between the bars I5 and i6 as schematically indicated by the dot and dash lines in Fig. 3. Caps 43 are placed over the tubular 1 piercing members 24 which are not being used.

the dot anddash lines in Fig.5. This pivots the bell crank wh ch in turn moves the connectamen ing rod 3a. indirectlymdving the be)? Si and the to 3.0 i whichmovetne; carriage it i to its front position. I I

When thecarriage I4 move'sflto its. front. posi. tion the cans 2! will be moved .onto the piercing members 214 which pierce-holes into the cans 2| way at the bottom at the front ends of the cans. The compressible Sealing. bushings are compressed againstthe ends of thecans Zl around the piercing members 24 tightly sealing the piercing members so that no liquid or gases leak out. It should be 'noted' that th'piercingmembers 24 pierce the curved ends 42. of the cans 21 substantially at right angles to the areas being piercedv soas to; puncture roundholes which, are easily sealedzby the compressible, sealing: bushings 21. The back ends of the cans 2| cannot kick up while the carriage I4 is moving forwards because they are held down by the studs 4|. The gas pressure within the cans 2| will dispense the contents of the cans through the tubular piercing members 24 and the fluid discharge pipe 28.

It should be noted that when the carriage I4 is in its front position it is locked against moving backwards because of the position of the toggles 30, 3| (see particularly Fig. 8). This prevents accidental moving rearwards of the carriage l4 during the dispensing operation which would be dangerous because the fumigating chemical would be released into the atmosphere. Because the cans 2| are inclined downwards and are punctured at the bottom of their front ends, all of their contents will be dispensed except for a few drops which will remain below the piercing members 24.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. In a fluid dispenser, a frame having a wall, a carriage movably mounted on said frame for moving horizontally towards said wall, means on said carriage for supporting a can in a downwardly inclined position with its front end directed towards said wall, a can piercing member horizontally mounted, on said wall in a position aligning with the bottom of the front end of said can, and means for moving said carriage towards said wall for engaging the bottom of the front end of said can on to said piercing member.

2. A multiple fluid dispenser, comprising a frame having a front wall, a carriage slidably mounted on said frame for moving horizontally towards said front wall, means on said carriage for supporting a plurality of cans in downwardly inclined positions with their front ends directed towards said front wall, a plurality of tubular can piercing members horizontally mounted on said front wall in positions aligning with the bottoms of the front ends of said cans, a fluid discharge pipe connected with said tubular piercing members, a compressible sealing bushing mounted on each of said tubular piercing members for sealing the connection between said tubular piercing members and the front ends of said cans, and means for moving said carriage towards said front wall for simultaneously engaging the bottoms of the front ends of said cans onto said tubular piercing members.

3. 5 multiple fluid. dispen er, comprising. a frame, having .a frontwall, acarriage slidably mounted on said frame for moving horizontally towards'fsaid front, wall, means onsaid carriage f r supporting a. plurality f. ca indownward y inclinedpositions with their front ends directed towardssaidfront wall, a plurality of tubular can piercing. members horizontally mounted on said front wallin'positions aligning. with. the bottoms of they front ends of said cans, a fluid dischar e pipe connected with said tubular piercing members,, acompressible sealing bushin mounted on each of said tubular piercing: members for sealing the connection between v said tubular piercing members. and the front endsof said cans, means for moving said carriage towards said front wall for simultaneously engaging the bottoms of the front ends of said cans onto said tubular piercing members, and means for holding the back ends of said cans from moving upwards.

4. A multiple fluid dispenser, comprising a frame having a front wall, a carriage slidably mounted on said frame for moving horizontally towards said front wall, means on said carriage for supporting a plurality of cans in downwardly inclined positions with their front ends directed towards said front wall, a plurality of tubular can piercing members horizontally mounted on said front wall in positions aligning with the bottoms of the front ends of said cans, a fluid discharge pipe connected with said tubular piercing members, a compressible sealing bushing mounted on each of said tubular piercing members for sealing the connection between said tubular piercing members and the front ends of said cans, means for moving said carriage towards said front wall for simultaneously engaging the bottoms of the front ends of said cans onto said tubular piercing members, means for holding the back ends of said cans from moving upwards, and caps for encasing each of said can piercing members.

5. A multiple fluid dispenser, comprising a frame having a front wall, a carriage slidably mounted on said frame for moving horizontally towards said front wall, means on said carriage for supporting a plurality of cans in downwardly inclined positions with their front ends directed towards said front wall, a plurality of tubular can piercing members horizontally mounted on said front wall in positions aligning with the bottoms of the front ends of said cans, a fluid discharge pipe connected with said tubular piercing members, a compressible sealing bushing mounted on each of said tubular piercing members for sealing the connection between said tubular piercing members and the front ends of said cans, and means for moving said carriage towards said front wall for simultaneously engaging the bottoms of the front ends of said cans onto said tubular piercing members and locking said carriage in its forward position, said means including a plurality of toggles mounted between said carriage and said frame, a rod connecting all of said toggles together for unitary operation, a bell crank with an operating handle, and a connecting rod between said bell crank and one of said toggles.

6. A multiple fluid dispenser, comprising a frame having a front wall, a carriage slidably mounted on said frame for moving horizontally towards said front wall, means on said carriage for supporting a plurality of cans in downwardly inclined positions with their front ends directed towards said front wall, a plurality of tubular can piercing members horizontally mounted on said front wall in positions aligning withthe bottoms of the front ends of said cans, a fluid discharge pipe connected with said tubular piercing members, a compressible sealing bushing mounted on each of said tubular piercing members for sealing the connection between said tubular piercing members and the front ends of said cans, and means for moving said carriage towards said front wall for simultaneously engaging the bottoms of the front ends of said cans onto said tubular piercing members and locking said carriage in its forward position, said means including a plurality of toggles mounted between said carriage and said frame, a rod connecting all of said toggles together for unitary operation, a, bell crank with an operating'handle, and a connecting rod between said bell crank and one of said toggles, and means for limiting moving of said toggles to positions slightly past their dead centers.

WILLIAM H. BAUMGARD.

REFERENCES CITED UNITED STATES PATENTS Number Name Date 1,657,783 Berg Jan. 31, 1928 15 2,203,710 Young June 11, 1940 2,259,863 Smith Oct. 21,1941, 

